Transferring mechanism for automatic filling-replenishing looms



APPLICATION FILED MAY 22 I920.

Patented May 30, 1922.

Mil/1d v 7K'VENTOR.

W ATTORNEY.

EVARIS'DE MARTIN, or MANCHESTER, nnwnaritrsnran, ass enoia or ona- ALE"T0 AZAIDE D'UVAL, or mnncirnsrn a, new nanrsrtrnln.

W ra nxrsrnnninev ncnnnrsn roe Amer/mic rrtnine-nnrtnnrsnine-Looms. I 3

T 0 all whom it may concern Be it known that I, EVARISTE MARTIN, acitizen of the United States, residing at Manchester, in the county ofHillsborough and State of New Hampshire, have invented certain new anduseful Improvements in 7 moved downwardlyand acts to transfer a freshfilling carrier, such as a full bobbin, from the hopper into theshuttle, which is then beneath the hopper on the lay. The transferrerusually contacts with the butt of the filling carrier, and sometimesalso with a point at, or adjacent to the tip, or at some intermediatepoint-on'the filling, but the main force applied by the transferrer-isto the butt.

My invention can be used in connection with the transferrer mechanism onlooms of the Northrop type, or on any loom which contalns a bobbinmagazine.

With most of such looms the head of the bobbin is squared and must fitin between guides or springs in the shuttle. If. in the process oftransferring, the butt of the bobbin is turned, as frequently happens,by the action of the transferring mechanism, the guides or springs inthe shuttles are broken, or the head of the bobbin is broken and muchdamage occurs.

With force applied only to the butt, the tip end of the bobbin, notbeing held nor steadied, tends to swing outof position, and with all topor intermediate guides now in use, which do not grip and hold firmly thebobbin, there is a strong tendency to turn or swing out of alignment,causingsmashes and other damage. i

As the filled bobbin occupies most of the width of the bobbin slot inthe shuttle, there is, little roomto pass down on each side until i thewinding cone at or near the tip end of the bobbin is reached. As theyarn is held Specification of Letters Patent, Pa'fijgntgd May 39Application filed May 22,

1920. Serial imssaeae.

insuch position thatit runs from thisp'oint up over the exposed woodentip of the bobbin, any tip guide or transferrerl which'enlikely to cutthe yarn.

y gages the, wood of the bobbin at the tip is i device consists ofgrippers which automatically seize the filling of the new boba bin,preferably Inidwayon the winding cone,

near the-tip end of the filling carrier where the yarn itself provides asuitable padding, thus doing away with the need of springs or otherpadding, andholds this part of the bobbin firmly in position as thetransferring mechanism, descends, butthe moment it-be gins to bewithdrawn releases the bobbin. Thls gripping actionprevents the-bobbin.

from turning, swinging, pulling out, or getting out of true. Itwill-work as well on bobbms with round heads as those which are squared,and if located abovethe cone,

ficient room to operate. 4

It is obvious that to properly guide the filling carrier or bobbin, thepart of the'arm' which engages the tip or, free end must strike atalmost exactly the same time that the head is struck, as otherwisethetendency of, the tip to kick up is no'tavoided'. Itis it will not cutthe yarn and will have sufl also obvious that unless the tip is grippedby grippers, the tendencyof the up of the bobbin'to kick down is notprevented and the tendency'to turn on its axis. isinotprevented.

An important feature of my invention is the axial adjustment ofthefshaft whichsupports the tip guide or'grippers. with reference to thehead operating on the butt-of the 1fill5 ing carrier,- because by movingthistipguide i:

axially it can be madeto strikeeXactl-y the point on thecone, winddesired,"and Iclaim to be the first to provide this axialadjust ment ofa tip guide adapted to vengagea conical part of the filling wind.Moreparticularly I claim to be the first to provide grippers for a tipguide, especially in combination with an axial adjustment whereby thesecan be very accurately set so that they y can work automatically bymeans of a closing finger at exactly the right moment and will stillhave space to properly function.

The drawings illustrate so muchgof the X;

mechanism of an ordinary filling replenish? ing loom, and the preferredform of invention embodied therein, as is necessary for the disclosure.of said lnvention.

.- In the drawings, Fig. 1 is a side elevation,

preferably in cross section, of the hopper stand, hopper, transferrer,and immediate connected parts of a loom of the well known Northrop type.Fig. 2 is a rearelevation, as from the right of Fig. 1, of a transferrerwith my invention in position. Fig. 3 is a side elevation of thetransferreras shown in Fig. 2, both Figs. 2 and 3, showing the grip persas about to engage a bobbin, and 'Fig. 4 is a view similar to Fig. 3showing the grippers engaging the bobbin. Fig. am a plan view of ashuttle showing the guides, springs, and squared head bobbin. Fig. 6 isa side elevation, and Fig. 7 an end elevation of a bobbin with a squaredhead, of the type generally used in such looms. i I v Since thisinvention relates solely to the transfererr, it is unnecessary toillustrate or to describe in detail the automatic filling replenishingloom of which it forms a part and of which the construction andoperation is familiar to those skilled in the weaving art.

For convenience of illustration, there is herein shown the hopper standlfrom which rises the hopper 2 and upon which are rotarily mounted thediscs, one of which 3 is shown. The disc 3 is provided with peripheralseats 4 in which are mounted the butts of the supply of fresh fillingcarriers B while the'tips are mounted or supported in the oppositedisc-not illustrated.

The filling carrier to be transferred is brought by the rotation of thehopper into contact with the abutment 6 and in this position is held inthe hopper by the yielding bobbin support 7. When the running fillingbreaks or becomes entirely or partially exh austed and fillingreplenishment is called for, mechanisms are set into operation whichcause the transfer of this filling carrier resting against the abutment6 from the hopper downwardly into the shuttle which is then on the layand beneath the hopper, the spent filling carrier being simultaneouslyejected.

The immediate instrumentality concerned in the transfer is the so-calledtransferrer which is herein shown as pivotally mounted at 8 on thehopper stand, and of the shape of a bell crank lever. The transferrerprojects between the discs of the hopper and in its normal inactiveposition the head 9 of the transferrer extends directly above the buttof the filling carrier in position for 2 transfer. I

from in a direction parallel with the filling carrier to a pointopposite or nearly opposite the tip 13, the shaft 20.

This is shown as attached to head 9 by 4 means of nuts such as 19.

At or near the end of" shaft 20 are the 40, fixed arm 42, movable arm 43and spring 45. Thestop 40 includes a body adjust'ably fixed to shaft 20by means of setscrew 41, and a. finger 46 which extends out toward thetip of shaft 20. The fixed arm 42 is shown as carried bythe squared end39 of shaft 20, and as terminating at the bottom in a fixed jaw orfinger 51, and as having a curved portion 50 adapted to contact with thetop of the yarn mass on the bobbin. This fixed arm, and body 51 may beadjusted by turning shaft 20 by means of the nuts 19.

The pivoted arm 43 terminates at the bottom in a movable aw 52, and hasa closing finger 53 in position to engage the top of the filling carrierwhen the head and shaft descend to transfer the filling. Movable arm 43also has at the top an extension 44 into 'which passes a spring45, whichis fixed at filling and hold it and the bobbin from turn ing until thedownward movement ceases. lVhen thetransferring mechanism, including thegrippers, are withdrawmthe grip pers automatically release the yarn massor filling on the bobbin.

In case the grippers should not function properly, or in case spring 45shouldbreak, the fixed arm 42 will still function and, if located midwayon the winding cone 13, will act to better advantage than if it was onthe large part of the yarn mass 14 or the wooden part of the tip 12.

I claim:

1. In a transferring mechanism for auto matic filling replenishinglooms, the combination of a head operating on the butt of the fillingcarrier, with a shaft carried thereby extending from said head parallelwith the filling carrier to a point opposite the tip thereof, andgrippers carried by the shaft comprising adownwardly extending arm fixedto the shaft and terminating in a fixed jaw in position to enter theshuttle andto engage the filling midway on the winding cone at the tipend of the filling carrier, a movable arm pivoted to the shaft ad oiningthe fixed arm and terminating in a movable jaw in position to enter theshuttle and having a closing finger 1n p0s1t10n toengage the top of thefilling carrier when the head and shaft descend to transfer the filling,so located and of such shape that as the grippers descend it will engagethe fill ing carrier and close the movable jaw on the fixed jaw, therebygripping the filling on the filling carrier near the tip and holding thefilling carrier firmly in position unvtil the head and shaftarewithdrawn, to

gether with a spring adapted to normally separate the movable jaw fromthe fixed aw. J

2. In a transferring mechanism for automatic filling replenishing looms,the combi nation of a head operating on the. butt of the fillingcarrier, with a shaft carried thereby extending from said head parallelvwith the filling carrier to a point opposite the tip thereof, andgrippers carried by the filling, so located and of such shape that asthe grippers descend it will engage'the filling carrier and close themovable jaw on:

the fixed jaw, thereby gripping the filling or the filling carrier nearthe tip and holding the filling carrier firmly in position un' til thehead and shaft are withdrawn, together with a spring adapted to normallyseparate the movable jaw from the fixed jaw 3. matic fillingreplenishing looms, the combination with a shaft, of grippers carried byIn a transferring mechanism for autothe haft comprising a downwardlyextending arm fixed to the-shaft and terminating in a fixed jaw, amovable arm pivoted to the shaft adjoining the fixed arm and terminatingin a movable jaw and having a closing I finger in position to engage thefilling oar-' rier when the grippers contact therewith and to'close themovable jaw on the fixed jaw, thereby gripping the filling carrier, to-

gether with a spring adapted to normally separate the movable jaw fromthe fixed jaw. I

4. In a transferring mechanism for automatic filling replenlshing looms,the combination of a head operating on the butt of the filling carrier,with an axially adjustable shaft carried thereby extending from saidhead parallel with the filling carrier to a point opposite the tipthereof and grippers carried by theshaft automatically operable, and inpositionto engage the filling midway on the winding cone at the tip endof the filling carrier to grip the filling and prevent the fillingcarrier from turning.

5. In a transferring mechanism for automatic filling replenishing looms,the combination'of a head operating on the butt of the filling carrier,with an axially adjustable shaft carried thereby extending from saidhead parallel with the filling carrier to a point opposite the tipthereof, and a tip guide carried by the shaft in position to engage thefilling midway on the winding cone at the tip endof the filling carrier.

6. In a transferring, mechanism for automatic filling replenishinglooms, the combination of a head operating on the butt of a fillingcarrier, with a shaft carried thereby extending from said head parallelwith the filling carrier to a point opposite the tip thereof, andgrippers carried by the shaft automatically operable to grip the fillingand prevent it from turning.

In testimony whereof I have affixed my signature.

i l EVARISTE MARTIN. Witnesses: v

AZADE DUVAL,

THQMAS J. Bois;

